Wool type fabric



7 novel fabric so that Reissued May 13, 1947 UNITED STATE FICE WOOL TYPEFABRIC William S. Nutter, Sanford, Maine, assignor to Goodall-Sanford,Inc.,

poration of Maine No Drawing. Original N ruary 18,1947, 1945. ApplicatioSerial No. 735,017

Sanford, Maine, a coro. 2,416,116, dated Feb- Serial No. 620,401,October 4, n for reissue March 15, 1947,

1 Claim. (Cl. 139426) Worsted and Woolen fabrics have for many yearsbeen made accordin to a standard construction in which both the warp andfilling yarns are two-ply, while the size and twistof the yarns and thenumber of ends and picks have been varied as required by the quality andweight per square yard desired.

It is the object of the present invention to pro duce a fabric whichshall replace, be at least equal to, and in many respects superior to,any such standard fabric.

It is the further object of the invention to provide such a novel fabricto replace such a standard fabric at greatly reduced cost not only inthe spinning, weaving, and other processes employed in the manufactureof the fabric, but in the lessened amount of wool fiber required.

A further object of the invention in the production of this novel fabricis to make use of a soft plastic as one component which acts to closethe scaly construction of the Wool fiber, reduce or eliminate fuzzinessand roughness of the wool fiber, prevent felting, increases the tensilestrength of the yarns above those of the standard and, by reason of theadhesive characteristic of the plastic constituent, minimizes fiber andyarn slippage.

The object of the invention isfurther, in connection with the plastictreatment employed, the use of single yarn as filling, reducesubstantially the twist of the yarns employed, and substantially reducethe number of filling picks and warp ends.

The novel and superior character of the fabric of this invention willappear more fully from the accompanying description and will beparticularly pointed out in the claim.

The invention as stated enables any standard wool fabric formed in theusual way with twoply wool fiber, warps and filling ends, and having agiven weight per square yard, to be replaced at greatly reduced cost andwith superior qualities.

In the fabric of this invention the yarns employed are given a twist atleast twenty-five per cent below the twist of the yarns in the standardfabric to be replaced and are then impregnated with a soft plastic.Various plastics may be used for this purpose and as an example thepolymer of a derivative of acrylic acid, manufactured by Rohm and Haas,and the well known copolymerization of vinyl chloride and vinyl acetate,manufactured by the Carbide & Carbon Chemicals Corporation, have beensatisfactory. The amount of plastic employed in this impregnation mustbe sutficient to equal the difference in the weight of the Wool fiberemployed in the standard fabric to be replaced and wool fiber employedin this the finished fabric of this invention shall have the same weightper square yard as the standard.

This treatment or impregnation of the yarn with the soft plastic givesadditional wearing relatively smooth and straight fiber.

2 qualities while retaining all the softness that slack spun yarnspossess. It enables a single yarn to have the required strength of atwo-ply yarn. It also is deposited under the scales of the wool fiberthus closing these scales, practically eliminatin fuzziness and theroughingup characteristic of wool fiber and producing a But since theplastic has a certain amount of adhesive qualits the slippage whichwould occur absolutely smooth straight fiber is avoided. At the sametime the tensile strength of the yarns is substantially increased overthose of the standard.

The yarn employed for the filling of the fabric of this invention is asingle yarn having not more than seventyfive per cent of the twist ofthe yarn in the standard and the yarn employed for the warp is a two-plyyarn each ply of which has a twist similar to thatof the filling yarnemployed but is of half the siZe or twice the count of the filling yarn.

In the weaving of at least twenty-five the fabric with these yarns percent less filling picks and at least twenty-five per cent less warp endsthan in the standard are employed.

Fabrics manufactured in accordance with this invention are not only lessexpensive to manufacture both by reason of the lessened amount of woolfiber employed, but by reason of the reductionin cost of the textileprocesses employed. The fabrics are found to have superior qualities tothose of the standard fabric, among others in increased strength andwear, ability to withstand washing without felting or shrinking ordisturbing the proportions of'garments into which the fabric is made.

Having thus described the invention, what is claimed as new and desiredto be secured by Let ters Patent is:

A novel fabric, to replace a standard wool fabric formed in the usualway with two-ply wool fiber warp and filling and having the same weightper square yard as said standard, consisting of yarns of wool fiberhaving at least twenty-five per cent less filling picks and at leasttwenty-five per cent less warp ends than in said standard, with thefilling a single yarn having not more than seventy-five per cent of theplies of the standard, with the warp a two-ply yarn the plies of whichhave and half the size of, the single yarn, and in which the yarns areimpregnated with a soft plastic in with an

